Ratchet-drill



(HUMMEL) 0. s. WALKER.

RATGHLT DRILL.

Patented Aug. '7, 1883.

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WITESSES I C- ,3M

ATTORNEYS.

as a bearing for the lever.

` UNITED STATES PATENT OFFICE.

OAKLEY S. VALKER, vOF OARTHAGE, NEW YORK.

RATCHET-RILL.

SPECIFICATION forming part of Letters Patent No.' 282,809,7dated August 7, 1883.

' Application ilcd March 31, 1883. (No model.) I

To all whom it may concern:

Beit known that I, OAKLEY SMITI-I WALKER, of Carthage, in the county of Jefferson and State of New York, have invented a new and useful Improvement in Ratchet-Drills, of which the following is a full, clear, and exact description, reference being had to the anneXed drawings, forming part of this specification.

This invention relates to ratchet-drills for hand use; and the invention consists of the novel features of construction hereinafter described and claimed.

In the drawings, Figure lis an elevation of my improved ratchet-drill, partly broken away. Fig. 2 is a similar view, partly in section. Fig. 3 is a section on line x x of Fig. 1, showing the wrench applied; and Fig. 4 is a section on line y y, Fig. 2.

The lever A is provided with a hollow cylindrical boss, B, having an internal flange or collar, C, upon which is supported the ratchetspindle D, and an annular nut, E, screwing on said spindle outside the said collar. A spring-pawl, F, pivoted on a pin, G, in the handle-socket H, is adapted to engage with the ratchet I on the spindle, to communicate an intermittent movement to the spindle in a single direction when the handleis operated. The spindle D is made hollow, and is provided with a key-seat to receive a key on the drill-stock J, which is carried in the said hollow spindle. The ratchet-spindle is provided with anA external thread extending its whole length above the ratchet I, over which screws a feed-sleeve, K, which is adapted to pass down between said spindle and the inner surface of the boss B, whereby it shall serve The feed-sleeve is closed at its outer end, and is provided with a threaded perforation, into which is screwed an adj usting-screw, L. The screw L and sleeve K are provided with perforations M, by means of which arwren-ch, N, may be applied thereto for adjusting said parts. When the wrench is not in use, it may be screwed into the hollow handle or lever A for safe-keeping. The advantage of the screw L is that it is not only adapted for quick and convenient ad- Vhere the space in which the drill is to work is wide, the feed-sleeve may be provided with an extension-sleeve adapted to screw thereon, and the supplemental feed-screw may be screwed into the end of such extension.

yBy making the vfeed-sleeve about equal in length with the ratchet-spindle, as above described, it can be screwed down over the spindle to the ratchet, whereby the smallest possible compass may be secured in the tool.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent7 is#- v 1. Aratchet-drill having the working-lever provided with a boss or socket which forms a bearing for the feed mechanism, whereby the feed mechanism may be extended and utilized the full length of the drill-spindle, substantially as shown and described. K

2. The combination of the hollow externally-threaded ratchet-spindle, the hollow internallythreaded feed-sleeve working over said spindle, and the supplemental feed or adjusting. screw working in the said sleeve, substantially as shown and described.

' 3. The combination, with the ratchet-spindle and the feed-sleeve having the supplemental feed-screw, of thev lever having the boss adapted to support the tool at the middle or weakest part when the feed-sleeve has been fed out its full length, substantially as shown and described. l

OAKLEY SMITH WALKER.

Witnesses z G. M. SPENCER, A. A. COLLINS. 

